Information-encryption.zip_网络编程下载-pudn.com

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">信息加密与网络安全</div><div class="t m0 x2 h4 y3 ff1 fs1 fc0 sc0 ls0 ws0">摘要</div><div class="t m0 x3 h5 y4 ff2 fs2 fc0 sc1 ls0 ws0"> 在信息化飞速发展的今天，计算机得到了广泛应用，但随着网络之间的信息传输量</div><div class="t m0 x3 h5 y5 ff1 fs2 fc0 sc1 ls0 ws0">的急剧增长，一些机构和部门在得益于网络加快业务运作的同时，其上网的数据也遭</div><div class="t m0 x3 h5 y6 ff1 fs2 fc0 sc1 ls0 ws0">到了不同程度的攻击和破坏。攻击者可以窃听网络上的信息，窃取用户的口令、数据</div><div class="t m0 x3 h5 y7 ff1 fs2 fc0 sc1 ls0 ws0">库的信息；还可以篡改数据库内容，伪造用户身份，否认自己的签名。随着计算机网</div><div class="t m0 x3 h5 y8 ff1 fs2 fc0 sc1 ls0 ws0">络技术的发展，网络的安全性和可靠性已成为不同使用层次的用户共同关心的问题。</div><div class="t m0 x3 h5 y9 ff1 fs2 fc0 sc1 ls0 ws0">人们都希望自己的网络系统能够更加可靠地运行，不受外来入侵者干扰和破坏。因此，</div><div class="t m0 x3 h5 ya ff1 fs2 fc0 sc1 ls0 ws0">必须采取科学有效的安全保护措施来维护网络安全。其中最有效的措施便是对数据进</div><div class="t m0 x3 h5 yb ff1 fs2 fc0 sc1 ls0 ws0">行加密。</div><div class="t m0 x4 h5 yc ff1 fs2 fc0 sc1 ls0 ws0">本文基于对计算机安全方面存在的问题，通过对信息泄露的途径、网络攻击手段</div><div class="t m0 x3 h5 yd ff1 fs2 fc0 sc1 ls0 ws0">的分析，探讨了计算机的安全管理，提出了计算机安全防范的措施。</div><div class="t m0 x3 h6 ye ff2 fs3 fc0 sc1 ls0 ws0"> 关键词：计算机；网络安全；加密技术</div><div class="t m0 x5 h7 yf ff3 fs0 fc0 sc1 ls0 ws0"> </div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/bg2.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x6 h7 y10 ff3 fs0 fc0 sc1 ls0 ws0">Information encryption and Network security</div><div class="t m0 x7 h8 y11 ff3 fs1 fc0 sc1 ls0 ws0">ABSTRACT</div><div class="t m0 x4 h9 y12 ff2 fs2 fc0 sc1 ls0 ws0">With the informationization developing fast today, the computer</div><div class="t m0 x3 h9 y13 ff2 fs2 fc0 sc1 ls0 ws0">obtained the widespread application, but along with the network</div><div class="t m0 x3 h9 y14 ff2 fs2 fc0 sc1 ls0 ws0">information transmission capacity growing faster, some organizations and</div><div class="t m0 x3 h9 y15 ff2 fs2 fc0 sc1 ls0 ws0">departments benet the speedup with the service operation in the</div><div class="t m0 x3 h9 y16 ff2 fs2 fc0 sc1 ls0 ws0">network, while, the data has also suered to extent attack and</div><div class="t m0 x3 h9 y17 ff2 fs2 fc0 sc1 ls0 ws0">destruction. The aggressor may intercept the information in the network,</div><div class="t m0 x3 h9 y18 ff2 fs2 fc0 sc1 ls0 ws0">steals the user’s password, the database information; also may tamper</div><div class="t m0 x3 h9 y19 ff2 fs2 fc0 sc1 ls0 ws0">with the database content, the forge user’s status, denies own signature.</div><div class="t m0 x3 h9 y1a ff2 fs2 fc0 sc1 ls0 ws0">Along with the computer network technology development, the network</div><div class="t m0 x3 h9 y1b ff2 fs2 fc0 sc1 ls0 ws0">security and the reliability have become the question of common interest</div><div class="t m0 x3 h9 y1c ff2 fs2 fc0 sc1 ls0 ws0">by all users. The people all hoped their own network system can move</div><div class="t m0 x3 h9 y1d ff2 fs2 fc0 sc1 ls0 ws0">reliably, not external intruder disturbance and destruction. Therefore, must</div><div class="t m0 x3 h9 y1e ff2 fs2 fc0 sc1 ls0 ws0">take safety protection scientic and eective measures to maintain the</div><div class="t m0 x3 h9 y1f ff2 fs2 fc0 sc1 ls0 ws0">security of network. Data encryption is an most eective method to</div><div class="t m0 x3 h9 y20 ff2 fs2 fc0 sc1 ls0 ws0">protect data security.</div><div class="t m0 x4 h9 y21 ff2 fs2 fc0 sc1 ls0 ws0">This article based on the question which exists to the computer</div><div class="t m0 x3 h9 y22 ff2 fs2 fc0 sc1 ls0 ws0">network security aspect, through to the information revelation's way, the</div><div class="t m0 x3 h9 y23 ff2 fs2 fc0 sc1 ls0 ws0">network attack method's analysis, has discussed computer network's</div><div class="t m0 x3 h9 y24 ff2 fs2 fc0 sc1 ls0 ws0">safety control, proposed the network security guard measure.</div><div class="t m0 x3 h6 y25 ff4 fs3 fc0 sc1 ls0 ws0"> Keywords：Computer；Network Security；Data encryption</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>

<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/bg3.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x8 h4 y26 ff1 fs1 fc0 sc0 ls0 ws0">目 录</div><div class="t m0 x3 ha y27 ff3 fs5 fc0 sc1 ls0 ws0">1 绪论........................................................................................................................................................................4</div><div class="t m0 x9 ha y28 ff4 fs5 fc0 sc1 ls0 ws0">1.1 选题背景及意义.............................................................................................................................................4</div><div class="t m0 xa hb y29 ff5 fs5 fc0 sc1 ls0 ws0">1.1.1 </div><div class="t m1 xb hc y29 ff1 fs6 fc0 sc1 ls0 ws0">选题背景</div><div class="t m0 xc hb y29 ff5 fs5 fc0 sc1 ls0 ws0">..................................................................................................................................................4</div><div class="t m0 xa hb y2a ff5 fs5 fc0 sc1 ls0 ws0">1.1.2 </div><div class="t m1 xb hc y2a ff1 fs6 fc0 sc1 ls0 ws0">选题意义</div><div class="t m0 xc hb y2a ff5 fs5 fc0 sc1 ls0 ws0">..................................................................................................................................................5</div><div class="t m0 x9 ha y2b ff4 fs5 fc0 sc1 ls0 ws0">1.2 国内外研究现状.............................................................................................................................................6</div><div class="t m0 xa hb y2c ff5 fs5 fc0 sc1 ls0 ws0">1.2.1 </div><div class="t m1 xb hc y2c ff1 fs6 fc0 sc1 ls0 ws0">计算机网络安全的现状</div><div class="t m0 xd hb y2c ff5 fs5 fc0 sc1 ls0 ws0">..........................................................................................................................6</div><div class="t m0 xa hb y2d ff5 fs5 fc0 sc1 ls0 ws0">1.2.2 </div><div class="t m1 xb hc y2d ff1 fs6 fc0 sc1 ls0 ws0">加密技术的国内外研究现状</div><div class="t m0 xe hb y2d ff5 fs5 fc0 sc1 ls0 ws0">..................................................................................................................8</div><div class="t m0 x9 ha y2e ff4 fs5 fc0 sc1 ls0 ws0">1.3 本论文结构...................................................................................................................................................11</div><div class="t m0 x3 ha y2f ff3 fs5 fc0 sc1 ls0 ws0">2 简介......................................................................................................................................................................12</div><div class="t m0 x9 ha y30 ff4 fs5 fc0 sc1 ls0 ws0">2.1 定义...............................................................................................................................................................12</div><div class="t m0 x9 ha y31 ff4 fs5 fc0 sc1 ls0 ws0">2.2 分类...............................................................................................................................................................14</div><div class="t m0 xa hb y32 ff5 fs5 fc0 sc1 ls0 ws0">2.2.1 </div><div class="t m1 xb hc y32 ff1 fs6 fc0 sc1 ls0 ws0">对称密码算法</div><div class="t m0 xf hb y32 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................14</div><div class="t m0 xa hb y33 ff5 fs5 fc0 sc1 ls0 ws0">2.2.2 </div><div class="t m1 xb hc y33 ff1 fs6 fc0 sc1 ls0 ws0">公开密码算法</div><div class="t m0 xf hb y33 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................15</div><div class="t m0 xa hb y34 ff5 fs5 fc0 sc1 ls0 ws0">2.2.3 </div><div class="t m1 xb hc y34 ff1 fs6 fc0 sc1 ls0 ws0">混合加密算法</div><div class="t m0 xf hb y34 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................17</div><div class="t m0 x9 ha y35 ff4 fs5 fc0 sc1 ls0 ws0">2.3 特点...............................................................................................................................................................19</div><div class="t m0 x9 ha y36 ff4 fs5 fc0 sc1 ls0 ws0">2.4 应用...............................................................................................................................................................19</div><div class="t m0 x3 ha y37 ff3 fs5 fc0 sc1 ls0 ws0">3 两种算法标准及原理..........................................................................................................................................22</div><div class="t m0 x9 ha y38 ff4 fs5 fc0 sc1 ls0 ws0">3.1 数据加密标准 DES.......................................................................................................................................22</div><div class="t m0 xa hb y39 ff5 fs5 fc0 sc1 ls0 ws0">3.1.1 DES</div><div class="t m1 x10 hc y39 ff1 fs6 fc0 sc1 ls0 ws0">算法描述</div><div class="t m0 xf hb y39 ff5 fs5 fc0 sc1 ls0 ws0">.......................................................................................................................................23</div><div class="t m0 xa hb y3a ff5 fs5 fc0 sc1 ls0 ws0">3.1.2 DES</div><div class="t m1 x10 hc y3a ff1 fs6 fc0 sc1 ls0 ws0">算法密钥的生成过程</div><div class="t m0 x11 hb y3a ff5 fs5 fc0 sc1 ls0 ws0">...................................................................................................................32</div><div class="t m0 xa hb y3b ff5 fs5 fc0 sc1 ls0 ws0">3.1.3 </div><div class="t m1 xb hc y3b ff1 fs6 fc0 sc1 ls0 ws0">解密运算</div><div class="t m0 xc hb y3b ff5 fs5 fc0 sc1 ls0 ws0">................................................................................................................................................37</div><div class="t m0 x9 ha y3c ff4 fs5 fc0 sc1 ls0 ws0">3.2 RSA 公钥密码体制......................................................................................................................................39</div><div class="t m0 xa hb y3d ff5 fs5 fc0 sc1 ls0 ws0">3.2.1 RSA</div><div class="t m1 x12 hc y3d ff1 fs6 fc0 sc1 ls0 ws0">简介</div><div class="t m0 x13 hb y3d ff5 fs5 fc0 sc1 ls0 ws0">................................................................................................................................................39</div><div class="t m0 xa hb y3e ff5 fs5 fc0 sc1 ls0 ws0">3.2.2 RSA</div><div class="t m1 x12 hc y3e ff1 fs6 fc0 sc1 ls0 ws0">算法描述</div><div class="t m0 x14 hb y3e ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................40</div><div class="t m0 xa hb y3f ff5 fs5 fc0 sc1 ls0 ws0">3.2.3 RSA</div><div class="t m1 x12 hc y3f ff1 fs6 fc0 sc1 ls0 ws0">共模攻击</div><div class="t m0 x14 hb y3f ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................41</div><div class="t m0 xa hb y40 ff5 fs5 fc0 sc1 ls0 ws0">3.2.4 RSA</div><div class="t m1 x12 hc y40 ff1 fs6 fc0 sc1 ls0 ws0">算法在计算上的可行性分析</div><div class="t m0 x7 hb y40 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................42</div><div class="t m0 xa hb y41 ff5 fs5 fc0 sc1 ls0 ws0">3.2.5 RSA</div><div class="t m1 x12 hc y41 ff1 fs6 fc0 sc1 ls0 ws0">的安全性</div><div class="t m0 x14 hb y41 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................44</div><div class="t m0 x9 ha y42 ff4 fs5 fc0 sc1 ls0 ws0">4.1 基于 3DES—RSA 算法数字签名的设计与实现........................................................................................48</div><div class="t m0 xa hb y43 ff5 fs5 fc0 sc1 ls0 ws0">4.1.1 </div><div class="t m1 xb hc y43 ff1 fs6 fc0 sc1 ls0 ws0">签名方案</div><div class="t m0 xc hb y43 ff5 fs5 fc0 sc1 ls0 ws0">................................................................................................................................................48</div><div class="t m0 xa hb y44 ff5 fs5 fc0 sc1 ls0 ws0">4.1.2 3DES</div><div class="t m1 x15 hc y44 ff1 fs6 fc0 sc1 ls0 ws0">算法</div><div class="t m0 x16 hb y44 ff5 fs5 fc0 sc1 ls0 ws0">.............................................................................................................................................49</div><div class="t m0 xa hb y45 ff5 fs5 fc0 sc1 ls0 ws0">4.1.3 RSA</div><div class="t m1 x12 hc y45 ff1 fs6 fc0 sc1 ls0 ws0">算法</div><div class="t m0 x13 hb y45 ff5 fs5 fc0 sc1 ls0 ws0">................................................................................................................................................50</div><div class="t m0 xa hb y46 ff5 fs5 fc0 sc1 ls0 ws0">4.1.4 3DES_RSA</div><div class="t m1 x17 hc y46 ff1 fs6 fc0 sc1 ls0 ws0">算法</div><div class="t m0 x18 hb y46 ff5 fs5 fc0 sc1 ls0 ws0">.....................................................................................................................................50</div><div class="t m0 xa hb y47 ff5 fs5 fc0 sc1 ls0 ws0">4.1.5 </div><div class="t m1 xb hc y47 ff1 fs6 fc0 sc1 ls0 ws0">大数的处理方法</div><div class="t m0 x19 hb y47 ff5 fs5 fc0 sc1 ls0 ws0">....................................................................................................................................52</div><div class="t m0 xa hb y48 ff5 fs5 fc0 sc1 ls0 ws0">4.1.6</div><div class="t m1 xb hc y48 ff1 fs6 fc0 sc1 ls0 ws0">对文档的数字签名</div><div class="t m0 x1a hb y48 ff5 fs5 fc0 sc1 ls0 ws0">................................................................................................................................53</div><div class="t m0 xa hb y49 ff5 fs5 fc0 sc1 ls0 ws0">4.1.7 </div><div class="t m1 xb hc y49 ff1 fs6 fc0 sc1 ls0 ws0">数字签名方案的实现</div><div class="t m0 x1b hb y49 ff5 fs5 fc0 sc1 ls0 ws0">............................................................................................................................54</div><div class="t m0 x9 ha y4a ff4 fs5 fc0 sc1 ls0 ws0">4.2 基于 DES 和 RSA 算法的数据加密传输系统............................................................................................55</div><div class="t m0 xa hb y4b ff5 fs5 fc0 sc1 ls0 ws0">4.2.1</div><div class="t m1 xb hc y4b ff1 fs6 fc0 sc1 ls0 ws0">系统的整体设计</div><div class="t m0 x19 hb y4b ff5 fs5 fc0 sc1 ls0 ws0">....................................................................................................................................55</div><div class="t m0 xa hb y4c ff5 fs5 fc0 sc1 ls0 ws0">4.2.2</div><div class="t m1 xb hc y4c ff1 fs6 fc0 sc1 ls0 ws0">数据加解密方案的设计</div><div class="t m0 xd hb y4c ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................56</div><div class="t m0 xa hb y4d ff5 fs5 fc0 sc1 ls0 ws0">4.2.3 DES</div><div class="t m1 x10 hc y4d ff1 fs6 fc0 sc1 ls0 ws0">和</div><div class="t m0 x1c hb y4d ff5 fs5 fc0 sc1 ls0 ws0">RSA</div><div class="t m1 x1d hc y4d ff1 fs6 fc0 sc1 ls0 ws0">算法设计</div><div class="t m0 x1e hb y4d ff5 fs5 fc0 sc1 ls0 ws0">...........................................................................................................................56</div><div class="t m0 xa hb y4e ff5 fs5 fc0 sc1 ls0 ws0">4.2.4</div><div class="t m1 xb hc y4e ff1 fs6 fc0 sc1 ls0 ws0">数据传输模块</div><div class="t m0 x14 hb y4e ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................................58</div><div class="t m0 xa hb y4f ff5 fs5 fc0 sc1 ls0 ws0">4.2.5 WDES </div><div class="t m1 x1f hc y4f ff1 fs6 fc0 sc1 ls0 ws0">的</div><div class="t m0 x20 hb y4f ff5 fs5 fc0 sc1 ls0 ws0">DES </div><div class="t m1 x21 hc y4f ff1 fs6 fc0 sc1 ls0 ws0">加解密模块</div><div class="t m0 x22 hb y4f ff5 fs5 fc0 sc1 ls0 ws0">...................................................................................................................59</div><div class="t m0 xa hb y50 ff5 fs5 fc0 sc1 ls0 ws0">4.2.6 WDES </div><div class="t m1 x1f hc y50 ff1 fs6 fc0 sc1 ls0 ws0">系统的设计实现</div><div class="t m0 x23 hb y50 ff5 fs5 fc0 sc1 ls0 ws0">........................................................................................................................61</div></div><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d m2"></div></a><a class="l" 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<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/bg4.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x24 h3 y51 ff3 fs0 fc0 sc1 ls0 ws0">1 绪论</div><div class="t m0 x24 h4 y52 ff6 fs1 fc0 sc1 ls0 ws0">1.1 选题背景及意义</div><div class="t m0 x24 h4 y53 ff3 fs1 fc0 sc1 ls0 ws0">1.1.1 选题背景</div><div class="t m0 x25 h5 y54 ff1 fs2 fc0 sc1 ls0 ws0">随着信息化技术以及网络应用在全球的日益普及和发展，社会对计算机</div><div class="t m0 x24 h5 y55 ff1 fs2 fc0 sc1 ls0 ws0">信息系统的依赖越来越大，安全可靠的网络空间已经成为支撑国民经济、关</div><div class="t m0 x24 h5 y56 ff1 fs2 fc0 sc1 ls0 ws0">键性基础设施以及国防的支柱。但随着全球网络安全事件的逐年增多，网络</div><div class="t m0 x24 hd y57 ff1 fs2 fc0 sc1 ls0 ws0">安全逐渐成为一个潜在的巨大问题，自 1988 年 Morris 蠕虫事件发生以来，</div><div class="t m0 x24 hd y21 ff1 fs2 fc0 sc1 ls0 ws0"> 有关网络安全事件的报道便不绝于耳。据美国 FBI 统计，全球平均每 20 秒</div><div class="t m0 x24 hd y58 ff7 fs2 fc0 sc1 ls0 ws0">就发生一起计算机系统被入侵事件，美国每年因网络安全造成的损失高达</div><div class="t m0 x24 hd y59 ff2 fs2 fc0 sc1 ls0 ws0">170 亿美元。网络安全问题已成为世人瞩目的社会问题，如何切实有效地保</div><div class="t m0 x24 hd y5a ff7 fs2 fc0 sc1 ls0 ws0">障网络安全，更是需要人们不断进行探究的难题。</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>

<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6274d4e2f0a4f84830eeb29a/bg5.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x24 h4 y5b ff3 fs1 fc0 sc1 ls0 ws0">1.1.2 选题意义</div><div class="t m0 x24 hd y5c ff4 fs4 fc0 sc1 ls0 ws0"> 如今，信息数据的传递和交流主要是通过计算机网络进行的，网络安全包</div><div class="t m0 x24 hd y5d ff7 fs2 fc0 sc1 ls0 ws0">括人为和非人为因素的影响因素。人为因素主要涉及黑客和病毒等；非人为</div><div class="t m0 x24 hd y5e ff1 fs2 fc0 sc1 ls0 ws0">因素则主要涉及计算机硬件故障及其部件损坏、电磁波干扰、自然灾害等。</div><div class="t m0 x24 hd y5f ff1 fs2 fc0 sc1 ls0 ws0">人们进行信息交流的最主要的安全隐患就是计算机的网络安全，信息交流的</div><div class="t m0 x24 hd y60 ff1 fs2 fc0 sc1 ls0 ws0">过程不法分子经常利用漏洞获得并利用信息交流传递过程泄露的数据，最终</div><div class="t m0 x24 hd y1c ff7 fs2 fc0 sc1 ls0 ws0">损害了多数人的根本利益，严重时威胁和危害了国家的安全。因此，必须采</div><div class="t m0 x24 hd y61 ff1 fs2 fc0 sc1 ls0 ws0">取科学有效的安全保护措施来维护网络安全。而信息加密技术是最主要的核</div><div class="t m0 x24 hd y62 ff1 fs2 fc0 sc1 ls0 ws0">心技术，是一种主动的信息安全防范措施，利用特殊的加密算法就是信息加</div><div class="t m0 x24 hd y63 ff1 fs2 fc0 sc1 ls0 ws0">密技术的具体原理，通过加密算法将明文转换成秘文，传递过程有效的阻止</div><div class="t m0 x24 hd y64 ff1 fs2 fc0 sc1 ls0 ws0">了非法用户非法的获取原始数据，从而确保数据的保密性，而这个具体过程</div><div class="t m0 x24 hd y65 ff7 fs2 fc0 sc1 ls0 ws0">就是加密。</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>